Automatic feeding device for bagged raw materials

Abstract

The automatic bagged raw material feeding device comprises a hopper and a base, a mechanical arm is arranged on the base, a feeding plate is arranged at the end, away from the base, of the mechanical arm, a puncturing rod used for puncturing and fixing a packaging bag is rotationally connected to the feeding plate, and a bag opening knife used for cutting the side, away from the feeding plate, of the packaging bag is fixedly connected to the top end of the hopper. The mechanical arm can drive the feeding plate to move, during feeding, the mechanical arm moves the feeding plate to the position over bagged raw materials, the fixed air cylinder drives the puncture rod to rotate to be perpendicular to the feeding plate, the puncture rod punctures the bagged raw materials, and the fixed air cylinder drives the puncture rod to rotate and fixes the bagged raw materials. The mechanical arm drives the feeding plate and the fixed bagged raw materials to scratch the bag opening cutter, the sides, away from the feeding plate, of the packaging bags are cut open, the raw materials flow out of the packaging bags and enter the hopper, and the feeding process is completed. The bagged raw material feeding device has the effect of high bagged raw material feeding efficiency.

Description

Technical Field

[0001] The present application relates to the field of production feeding technology equipment, and in particular to an automatic feeding device for bagged raw materials. Background Art

[0002] In industrial production, in order to facilitate inventory, storage and transportation, powdered raw materials are stored in woven bags on a large scale. Powdered raw materials packaged in woven bags can be directly stacked and stacked, and the cost is low. It is a packaging method that has been widely promoted and applied. In large-scale industrial production and processing, if manual labor is used to carry, open bags and add bagged raw materials, production efficiency will be limited to a certain extent. Therefore, mechanized feeding devices for bagged raw materials have been increasingly used.

[0003] For related technology, reference may be made to a Chinese patent with announcement number CN114955143B, which discloses an automatic bag opening device, including a silo and a material stack placed on the ground in one-to-one correspondence, a track arranged between the silo and the material stack, and a traveling frame traveling along the track, wherein a guide pipe is arranged at the upper end of the traveling frame, one end of the guide pipe extends out of the outer wall of the traveling frame and is located above the silo, and a grabbing and cutting structure is arranged at the end of the traveling frame away from the silo for grabbing the material bags on the material stack and cutting the material bags so that the raw materials fall onto the guide pipe.

[0004] With respect to the above-mentioned related technologies, automatic bag opening and loading of bagged raw materials within a certain range is realized. However, during the loading process, the grabbing and cutting structure realizes the grabbing and cutting functions on the same side of the bagged raw materials. The side of the packaging bag that is cut remains in a clamped state, which affects the unloading process and restricts the loading efficiency of the raw materials. Summary of the invention

[0005] In order to improve the feeding efficiency of bagged raw materials, the present application provides an automatic feeding device for bagged raw materials.

[0006] The present application provides an automatic feeding device for bagged raw materials, which adopts the following technical solution: An automatic feeding device for bagged raw materials includes a hopper for receiving the raw materials and a base, wherein a mechanical arm is provided on the base, and a feeding plate is provided at one end of the mechanical arm away from the base, a puncture rod for piercing and fixing a packaging bag is rotatably connected to the feeding plate, a fixed cylinder for driving the puncture rod to rotate is provided on the feeding plate, and a bag opening knife for cutting the packaging bag away from the feeding plate is fixedly connected to the top of the hopper.

[0007] By adopting the above technical solution, the base fixes the robotic arm and provides a fulcrum for the robotic arm. The loading plate is fixed to the movable end of the robotic arm, and the robotic arm can flexibly drive the loading plate to move. When loading, the robotic arm moves the loading plate to the top of the bagged raw materials, and the fixed cylinder drives the piercing rod to rotate to a state perpendicular to the loading plate. The robotic arm drives the loading plate and the piercing rod to move in the direction close to the bagged raw materials. The piercing rod pierces the bagged raw materials, and the fixed cylinder drives the piercing rod to rotate and fix the bagged raw materials. The robotic arm drives the loading plate and the fixed bagged raw materials to move above the hopper, and passes over the bag opening knife to cut the packaging bag away from the loading plate. The raw materials flow out of the packaging bag and enter the hopper, completing the loading process, which helps to improve the loading efficiency of the bagged raw materials.

[0008] Optionally, a pushing plate for pushing the packaging bag away from the loading plate is slidably connected to the loading plate, and a driving mechanism for driving the pushing plate to slide is provided on the loading plate.

[0009] By adopting the above technical solution, after the loading work is completed, the fixed cylinder drives the piercing rod to rotate, so that the piercing rod returns to a state perpendicular to the loading plate. However, the packaging bag itself is light in texture, and after the raw materials inside are discharged, it is difficult for the packaging bag to fall off the piercing rod smoothly under the action of its own gravity, which affects the next loading process. A push plate is set, and after completing a loading work, the driving mechanism drives the loading plate to slide, and then pushes the packaging bag away from the piercing rod, which helps to ensure the smooth progress of the loading work.

[0010] Optionally, the driving mechanism includes a driving cylinder, a cylinder body of the driving cylinder is fixedly connected to the loading plate, and a telescopic shaft of the driving cylinder is fixedly connected to the pushing plate.

[0011] By adopting the above technical solution, the telescopic shaft of the driving cylinder drives the push plate to slide, which is convenient for accurately driving and controlling the sliding of the push plate.

[0012] Optionally, the driving mechanism includes a synchronous rack fixedly connected to the pushing plate, the length direction of the synchronous rack is parallel to the sliding direction of the pushing plate, the loading plate is rotatably connected to a rotating shaft, the piercing rod is fixedly connected to the rotating shaft, and a synchronous gear is coaxially fixedly connected to the rotating shaft, the synchronous gear is meshed with the synchronous rack, and when the piercing rod rotates in the direction of fixing the packaging bag, the synchronous gear drives the synchronous rack to move in the direction close to the loading plate, and when the piercing rod rotates in the direction of loosening the packaging bag, the synchronous gear and the synchronous rack move in the direction away from the loading plate.

[0013] By adopting the above technical solution, when the piercing rod rotates in the direction of fixing the packaging bag, it drives the synchronous gear to rotate synchronously, and the synchronous gear drives the synchronous rack to move in the direction close to the loading plate, thereby driving the push plate to slide in the direction close to the push plate, thereby avoiding affecting the piercing rod from grabbing the bagged raw materials. After the loading is completed, the piercing rod rotates in the direction of loosening the packaging bag, and the synchronous gear drives the synchronous rack to move away from the loading plate, thereby pushing the bagged raw materials away from the piercing rod. The linkage control between the piercing rod and the push plate is realized.

[0014] Optionally, the loading plate is rotatably connected to a robotic arm, and the robotic arm is provided with a driving motor for driving the loading plate to rotate, and the output shaft of the driving motor is fixedly connected to the loading plate.

[0015] By adopting the above technical solution, the loading plate is rotatably connected to the robot arm and driven by the driving motor to rotate, so that the loading plate and the puncture needle can adapt to the raw materials stacked in all directions, and the application range of loading is improved. At the same time, the rotating loading plate can make the raw materials in the packaging bag be discharged faster and more thoroughly, which helps to further improve the loading efficiency.

[0016] Optionally, the loading plate includes a fixed plate and a movable plate which are arranged in alignment, the fixed plate is connected to the robotic arm, the movable plate is hinged to the fixed plate, a material shaking cylinder is provided on the movable plate, the cylinder body of the material shaking cylinder is hinged to the movable plate, the hinge axis of the cylinder body of the material shaking cylinder is parallel to the hinge axis of the movable plate, the output shaft of the material shaking cylinder is hinged to the fixed plate, and the hinge axis of the output shaft of the material shaking cylinder is parallel to the hinge axis of the movable plate.

[0017] By adopting the above technical solution, the reciprocating motion of the telescopic shaft of the shaking cylinder can drive the movable plate and the bagged raw materials to shake continuously, so that the raw materials in the packaging bag can be discharged faster and more thoroughly, which helps to further improve the feeding efficiency.

[0018] Optionally, the loading plate is fixedly connected to the side facing away from the robotic arm with two coding plates, the spacing between the two coding plates is adapted to the bagged raw materials, an equipment cavity is opened on the coding plate, a rotary downward pressure cylinder is provided in the equipment cavity, and a support rod for lifting the bagged raw materials from the bottom is fixedly connected to the output shaft of the rotary downward pressure cylinder.

[0019] By adopting the above technical solution, a stacking plate is set on the loading plate, and a number of rotating downward pressure cylinders are installed in the stacking plate. The spacing of the rotating downward pressure cylinders is matched with the spacing of the rollers of the roller conveyor. The support rod can penetrate deep into the rollers of the roller conveyor to receive the conveyed bagged raw materials, and then transfer and stack the bagged raw materials in an orderly manner, thereby realizing mechanized stacking of the bagged raw materials and reducing labor costs.

[0020] Optionally, a sleeve is provided on the surface of the support rod, and the sleeve is coaxially rotatably connected to the support rod.

[0021] By adopting the above technical solution, after the raw materials are stacked, it is necessary to rotate the support rod horizontally under the drive of the rotating downward pressure cylinder so that the support rod leaves the bottom of the bagged raw materials and separates from the bagged raw materials. Under the action of the weight of the bagged raw materials themselves, the bagged raw materials are tightly abutted against the support rod, and the moving support rod has the risk of slipping and breaking the packaging bag. The sleeve is provided, and the sleeve is coaxially rotatably connected to the support rod, which can reduce the friction force on the packaging bag and play a role in protecting the packaging bag.

[0022] Optionally, the hopper is rotatably connected to a transmission roller, the rotation axis of the transmission roller is horizontally arranged and perpendicular to the length direction of the bag opening knife, the transmission roller is located at the feeding end of the bag opening knife, both ends of the transmission roller are coaxially fixedly connected to transmission gears, the hopper is rotatably connected to a driven gear meshing with the transmission gear, the driven gear is coaxially fixedly connected to a transmission bevel gear, the hopper is rotatably connected to a driven bevel gear meshing with the transmission bevel gear, the driven bevel gear is coaxially fixedly connected to a transmission shaft, the transmission shaft is coaxially fixedly connected to a connecting ring, and the connecting ring is fixedly connected to a seam expansion strip for expanding the opening of the packaging bag.

[0023] By adopting the above technical solution, the bagged raw materials first come into contact with the driving roller before coming into contact with the bag opening knife, thereby driving the driving roller to rotate, and then driving the connecting ring to rotate. The expansion strip moving with the connecting ring expands the opening of the packaging bag, which helps the raw materials to be discharged more smoothly.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. During feeding, the robot arm moves the feeding plate to the top of the bagged raw materials, the piercing rod pierces the bagged raw materials and rotates to fix the bagged raw materials, the robot arm drives the feeding plate and the fixed bagged raw materials to move to the top of the hopper, and passes over the bag opening knife to cut the side of the bag away from the feeding plate, the raw materials flow out of the bag and enter the hopper, completing the feeding process, which helps to improve the feeding efficiency of the bagged raw materials; 2. A stacking plate is installed on the side of the loading plate away from the robotic arm. Several rotary downward pressure cylinders are installed in the stacking plate. The spacing of the rotary downward pressure cylinders matches the spacing of the rollers of the roller conveyor. The support rod can extend between the rollers of the roller conveyor to receive and transfer the conveyed bagged raw materials, thereby realizing the mechanized stacking of the bagged raw materials and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0026] Figure 2 It is a structural schematic diagram used to display the push plate in Example 1 of the present application.

[0027] Figure 3 yes Figure 2Enlarged schematic diagram of part A.

[0028] Figure 4 yes Figure 1 Enlarged schematic diagram of part C.

[0029] Figure 5 It is a structural schematic diagram used to display the synchronous gear in the second embodiment of the present application.

[0030] Figure 6 yes Figure 4 Schematic diagram of the enlarged portion B.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. hopper; 11. bag opening knife; 2. base; 21. mechanical arm; 211. driving motor; 3. loading plate; 31. piercing rod; 311. piercing rod; 32. fixed cylinder; 33. pushing plate; 341. driving cylinder; 342. synchronous rack; 343. synchronous gear; 35. fixed plate; 36. movable plate; 361. material shaking cylinder; 37. coding plate; 371. rotating downward pressure cylinder; 372. supporting rod; 373. sleeve; 4. transmission roller; 41. transmission gear; 42. driven gear; 43. transmission bevel gear; 44. driven bevel gear; 45. transmission shaft; 46. connecting ring; 47. expansion strip. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0033] Embodiment 1: The embodiment of the present application discloses an automatic feeding device for bagged raw materials.

[0034] Reference Figure 1 , an automatic feeding device for bagged raw materials, including a hopper 1 and a base 2, the hopper 1 is conical as a whole, used to receive powdered raw materials and introduce the raw materials into the production equipment, the top of the hopper 1 is fixedly connected with a bag opening knife 11, and the width of the bag opening knife 11 gradually decreases from bottom to top. A mechanical arm 21 is installed on the base 2, and the movable end of the mechanical arm 21 can realize multi-dimensional activities, which is a prior art, and the detailed working principle is not elaborated in this application. The base 2 is fixed to the ground to provide a fulcrum for the mechanical arm 21, and a feeding plate 3 is installed on the movable end of the mechanical arm 21. Under the drive of the mechanical arm 21, the feeding plate 3 can flexibly change its position and spatial orientation within a certain range. During feeding, the mechanical arm 21 drives the feeding plate 3 and the fixed bagged raw materials to pass through the bag opening knife 11, cut the side of the packaging bag away from the feeding plate 3, and the raw materials flow out of the packaging bag and enter the hopper 1, completing the feeding process, which helps to improve the feeding efficiency of the bagged raw materials.

[0035] Reference Figure 2 and Figure 3The end of the loading plate 3 facing away from the mechanical arm 21 is rotatably connected to a rotating shaft 31, and the length direction of the rotating shaft 31 is parallel to the surface of the loading plate 3. In order to improve the stability of grabbing the bagged raw materials, two rotating shafts 31 are provided, and the two rotating shafts 31 are arranged parallel to each other. A plurality of piercing rods 311 arranged parallel to each other are vertically fixedly connected to the surface of the rotating shaft 31. The loading plate 3 is equipped with a fixed cylinder 32 corresponding to the rotating shaft 31 one by one, and the output shaft of the fixed cylinder 32 is coaxially fixedly connected to the corresponding rotating shaft 31, which is used to drive the rotating shaft 31 and the piercing rod 311 to rotate. When grabbing the bagged raw materials, the robotic arm 21 drives the loading plate 3 to move to just above the bagged raw materials, and the fixed cylinder 32 drives the rotating shaft 31 to rotate in advance, so that the piercing rod 311 rotates to a state perpendicular to the loading plate 3. The robotic arm 21 drives the loading plate 3 and the piercing rod 311 to move in the direction close to the bagged raw materials. After the piercing rod 311 pierces the bagged raw materials, the fixed cylinder 32 drives the two groups of piercing rods 311 to rotate towards each other, thereby achieving the fixation of the bagged raw materials.

[0036] Reference Figure 2 and Figure 3 After the loading of a bagged raw material is completed, the raw material is discharged from the packaging bag, and the packaging bag is still fixed on the loading plate 3. At this time, the fixed cylinder 32 drives the rotating shaft 31 to rotate, and the piercing rod 311 returns to a state perpendicular to the loading plate 3. However, the packaging bag itself is light in texture and it is difficult to smoothly fall off the piercing rod 311 under the action of its own gravity, which will affect the next loading process. The end of the loading plate 3 away from the mechanical arm 21 is slidably connected with a push plate 33, and a driving mechanism is installed on the loading plate 3 to drive the push plate 33 to slide, and the sliding direction of the push plate 33 is perpendicular to the surface of the loading plate 3. After completing a loading work, the driving mechanism drives the push plate 33 to slide in the direction away from the loading plate 3, pushing the packaging bag away from the piercing rod 311, which can ensure the smooth progress and connection of the loading work.

[0037] Reference Figure 2 and Figure 3 The driving mechanism includes a driving cylinder 341 disposed between the loading plate 3 and the pushing plate 33. The overall length direction of the driving cylinder 341 is parallel to the sliding direction of the pushing plate 33. The cylinder body of the driving cylinder 341 is fixedly connected to the loading plate 3, and the telescopic shaft of the driving cylinder 341 is fixedly connected to the pushing plate 33. The telescopic shaft of the driving cylinder 341 drives the pushing plate 33 to slide, which is convenient for accurately driving and controlling the sliding of the pushing plate 33.

[0038] Reference Figure 2 and Figure 3Although the loading plate 3 can change its spatial position and spatial orientation under the drive of the mechanical arm 21, it is difficult for it to turn by itself. In the present application, the loading plate 3 is rotatably connected to the mechanical arm 21 and its rotation axis is perpendicular to the surface of the loading plate 3. The loading plate 3 can flexibly rotate at the movable end of the mechanical arm 21. A driving motor 211 is installed at the movable end of the mechanical arm 21. The output shaft of the driving motor 211 is fixedly connected to the loading plate 3, which can drive the rotation of the loading plate 3. The flexibly rotating loading plate 3 can adapt to raw materials stacked in various directions, thereby improving the scope of application. During loading, the rotating loading plate 3 can provide centrifugal force for the raw materials, so that the raw materials can be discharged from the packaging bag faster and more thoroughly, which helps to further improve the loading efficiency.

[0039] Reference Figure 2 and Figure 3 The feeding plate 3 includes a fixed plate 35 and a movable plate 36. The fixed plate 35 is rotatably connected to the movable end of the mechanical arm 21. The movable plate 36 is aligned with the side of the fixed plate 35 away from the mechanical arm 21, and the movable plate 36 is hinged on the fixed plate 35. The reciprocating rotation of the movable plate 36 can drive the piercing rod 311 and the bagged raw materials to shake. A shaking cylinder 361 is provided on the movable plate 36. The cylinder body of the shaking cylinder 361 is hinged on the movable plate 36. The output shaft of the shaking cylinder 361 is hinged to the fixed plate 35, and the hinge axis of the cylinder body of the shaking cylinder 361, the hinge axis of the movable plate 36 and the hinge axis of the output shaft of the shaking cylinder 361 are parallel to each other. The shaking bagged raw materials make the raw materials discharged faster and more thoroughly, which helps to further improve the feeding efficiency.

[0040] Reference Figure 2 and Figure 3 , the automatic feeding device for bagged raw materials needs to be used with bagged raw materials that have been neatly stacked, and the feeding plate 3 driven by the robot arm 21 has a certain operating range limitation, and the bagged raw materials need to be transferred and stacked near the robot arm 21. The transportation of bagged raw materials in the workshop can be achieved by roller conveyors, but the unloading and stacking work from the conveyor is usually done manually, and the labor cost is high. In this embodiment, two mutually parallel stacking plates 37 are fixedly connected to the side of the feeding plate 3 facing away from the robot arm 21, and the surface of the stacking plate 37 is perpendicular to the surface of the feeding plate 3 and the spacing between the two stacking plates 37 is adapted to the bagged raw materials.

[0041] Reference Figure 2 and Figure 3, the end of the coding plate 37 away from the loading plate 3 is provided with an equipment cavity, and a rotary downward pressure cylinder 371 is installed in the equipment cavity, and the movable shaft of the rotary downward pressure cylinder 371 is located at the end of the cylinder body of the rotary downward pressure cylinder 371 away from the loading plate 3. And a support rod 372 is fixedly connected to the output shaft of the rotary downward pressure cylinder 371, and the support rod 372 is arranged parallel to the surface of the loading plate 3. A plurality of equipment cavities and support rods 372 are arranged side by side on the coding plate 37, and the spacing between adjacent support rods 372 on the same coding plate 37 is adapted to the roller spacing of the roller conveyor used. When coding, the piercing rod 311 rotates to a state close to the loading plate 3 to avoid interference. The stacking plate 37 moves to the discharge end of the roller conveyor, and the support rod 372 enters between the rollers in turn. The bagged raw materials move with the roller conveyor to between the two stacking plates 37, and the support rod 372 is lifted to lift the bagged raw materials, transfer and neatly stack the bagged raw materials, thereby realizing mechanized stacking of the bagged raw materials and helping to reduce labor costs.

[0042] Reference Figure 2 and Figure 3 After the raw materials are stacked, it is necessary to rotate the support rod 372 horizontally under the drive of the rotary downward pressure cylinder 371 so that the support rod 372 leaves the bottom of the bagged raw materials and separates from the bagged raw materials. However, under the action of the weight of the bagged raw materials themselves, the bagged raw materials are closely abutted against the support rod 372, and the moving support rod 372 has the risk of slipping and breaking the packaging bag. The surface of the support rod 372 is provided with a sleeve 373, which is coaxially rotatably connected to the support rod 372, which can effectively reduce the friction of the packaging bag and protect the packaging bag.

[0043] Reference Figure 1 and Figure 4 The hopper 1 is rotatably connected to a horizontally arranged transmission roller 4, the rotation axis of the transmission roller 4 is perpendicular to the moving direction of the bagged raw material when the bag is opened, and the transmission roller 4 is located at the end where the bag opening knife 11 meets the bagged raw material, and both ends of the transmission roller 4 are coaxially fixedly connected to a transmission gear 41, the hopper 1 is rotatably connected to a driven gear 42 meshing with the transmission gear 41, the driven gear 42 is coaxially fixedly connected to a transmission bevel gear 43, the hopper 1 is rotatably connected to a driven bevel gear 44 meshing with the transmission bevel gear 43, the driven bevel gear 44 is coaxially fixedly connected to a transmission shaft 45, the transmission shaft 45 is coaxially fixedly connected to a connecting ring 46, and the connecting ring 46 is fixedly connected to a seam expansion strip 47. Before the bagged raw materials come into contact with the bag opening knife 11, they first come into contact with the driving roller 4 and drive the driving roller 4 to rotate, thereby driving the driving gear 41 to rotate, the driven gear 42 drives the driving bevel gear 43 to rotate, the driving bevel gear 43 drives the driven bevel gear 44 to rotate, the transmission shaft 45 rotates accordingly and then drives the connecting ring 46 to rotate, the expansion strip 47 that moves with the connecting ring 46 expands the opening of the packaging bag, which helps the raw materials to be discharged from the packaging bag more smoothly.

[0044] The implementation principle of the embodiment of the present application is as follows: during feeding, the fixed cylinder 32 drives the rotating shaft 31 to rotate, thereby rotating the piercing rod 311 to a state perpendicular to the surface of the feeding plate 3, and the mechanical arm 21 moves, moves the feeding plate 3 to the top of the bagged raw material, and then moves in the direction close to the bagged raw material, and the piercing rod 311 pierces the bagged raw material. The fixed cylinder 32 drives the rotating shaft 31 to rotate, and the two sets of piercing rods 311 rotate towards each other at the same time and fix the bagged raw material. The mechanical arm 21 drives the feeding plate 3 and the fixed bagged raw material to move above the hopper 1, moves horizontally and passes over the bag opening knife 11, cuts the packaging bag away from the feeding plate 3, and the raw material flows out of the packaging bag and enters the hopper 1, completing the feeding process, which helps to improve the feeding efficiency of the bagged raw material.

[0045] Embodiment 2: Reference Figure 5 and Figure 6 , the difference between the second embodiment and the first embodiment is that the structure of the driving mechanism is different. In this embodiment, the driving mechanism includes a synchronous rack 342, the length direction of the synchronous rack 342 is parallel to the sliding direction of the push plate 33, and the synchronous rack 342 is fixedly connected to the push plate 33. The rotating shaft 31 is coaxially fixedly connected with a synchronous gear 343, and the synchronous gear 343 is meshed with the synchronous rack 342. When the piercing rod 311 rotates in the direction of fixing the packaging bag, it drives the synchronous gear 343 to rotate, and the synchronous gear 343 drives the synchronous rack 342 to move in the direction close to the loading plate 3, thereby driving the push plate 33 to slide in the direction close to the loading plate 3, so as to avoid affecting the action of the piercing rod 311 to grab the bagged raw materials. After the loading is completed, the piercing rod 311 rotates in the direction of releasing the packaging bag, and the synchronous gear 343 and the synchronous rack 342 move in the direction away from the loading plate 3, thereby pushing the bagged raw materials away from the piercing rod 311, and the sliding of the push plate 33 can be automatically linked when the piercing rod 311 moves.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic feeding device for bagged raw materials, comprising a hopper (1) for receiving the raw materials, characterized in that: The invention also comprises a base (2), wherein a mechanical arm (21) is provided on the base (2), a loading plate (3) is provided at one end of the mechanical arm (21) away from the base (2), a piercing rod (311) for piercing and fixing the packaging bag is rotatably connected to the loading plate (3), a fixed cylinder (32) for driving the piercing rod (311) to rotate is provided on the loading plate (3), and a bag opening knife (11) for cutting the packaging bag away from the loading plate (3) is fixedly connected to the top of the hopper (1).

2. The automatic feeding device for bagged raw materials according to claim 1, characterized in that: A pushing plate (33) for pushing the packaging bag away from the loading plate (3) is slidably connected to the loading plate (3), and a driving mechanism for driving the pushing plate (33) to slide is provided on the loading plate (3).

3. The automatic feeding device for bagged raw materials according to claim 2 is characterized in that: The driving mechanism comprises a driving cylinder (341), a cylinder body of the driving cylinder (341) is fixedly connected to the loading plate (3), and a telescopic shaft of the driving cylinder (341) is fixedly connected to the pushing plate (33).

4. The automatic feeding device for bagged raw materials according to claim 2 is characterized in that: The driving mechanism comprises a synchronous rack (342) fixedly connected to the push plate (33), the length direction of the synchronous rack (342) is parallel to the sliding direction of the push plate (33), the loading plate (3) is rotatably connected to the rotating shaft (31), the piercing rod (311) is fixedly connected to the rotating shaft (31), a synchronous gear (343) is coaxially fixedly connected to the rotating shaft (31), the synchronous gear (343) is meshed with the synchronous rack (342), when the piercing rod (311) rotates in the direction of fixing the packaging bag, the synchronous gear (343) drives the synchronous rack (342) to move in the direction close to the loading plate (3), when the piercing rod (311) rotates in the direction of releasing the packaging bag, the synchronous gear (343) drives the synchronous rack (342) to move in the direction away from the loading plate (3).

5. The automatic feeding device for bagged raw materials according to claim 1 is characterized by: The loading plate (3) is rotatably connected to the mechanical arm (21), and the mechanical arm (21) is provided with a driving motor (211) for driving the loading plate (3) to rotate, and the output shaft of the driving motor (211) is fixedly connected to the loading plate (3).

6. The automatic feeding device for bagged raw materials according to claim 1, characterized in that: The loading plate (3) comprises a fixed plate (35) and a movable plate (36) which are arranged in alignment, the fixed plate (35) is connected to the mechanical arm (21), the movable plate (36) is hinged to the fixed plate (35), a material shaking cylinder (361) is provided on the movable plate (36), a cylinder body of the material shaking cylinder (361) is hinged to the movable plate (36), a hinge axis of the cylinder body of the material shaking cylinder (361) is parallel to a hinge axis of the movable plate (36), an output shaft of the material shaking cylinder (361) is hinged to the fixed plate (35), and a hinge axis of the output shaft of the material shaking cylinder (361) is parallel to a hinge axis of the movable plate (36).

7. The automatic feeding device for bagged raw materials according to claim 1 is characterized by: The loading plate (3) is fixedly connected to one side away from the robot arm (21) with two stacking plates (37), the spacing between the two stacking plates (37) being adapted to the bagged raw materials, the stacking plates (37) being provided with an equipment cavity, a rotary downward pressing cylinder (371) being provided in the equipment cavity, and a supporting rod (372) for lifting the bagged raw materials from the bottom being fixedly connected to the output shaft of the rotary downward pressing cylinder (371).

8. The automatic feeding device for bagged raw materials according to claim 7, characterized in that: A sleeve (373) is provided on the surface of the support rod (372), and the sleeve (373) is coaxially rotatably connected to the support rod (372).

9. The automatic feeding device for bagged raw materials according to claim 1, characterized in that: The hopper (1) is rotatably connected to a transmission roller (4), the rotation axis of the transmission roller (4) being arranged horizontally and perpendicular to the length direction of the bag opening knife (11), the transmission roller (4) being located at the feeding end of the bag opening knife (11), both ends of the transmission roller (4) being coaxially fixedly connected to a transmission gear (41), the hopper (1) being rotatably connected to a driven gear (42) meshing with the transmission gear (41), the driven gear (42) being coaxially fixedly connected to a transmission bevel gear (43), the hopper (1) being rotatably connected to a driven bevel gear (44) meshing with the transmission bevel gear (43), the driven bevel gear (44) being coaxially fixedly connected to a transmission shaft (45), the transmission shaft (45) being coaxially fixedly connected to a connecting ring (46), the connecting ring (46) being fixedly connected to a seam expansion strip (47) for expanding the opening of the packaging bag.

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